What is the easiest way to remember pie value?

Answer :

You can remember pie value , As $\mathbf{\pi }\mathbf{ }\mathbf{=}\frac{\mathbf{22}}{\mathbf{7}}\mathbf{ }$ ,

And to find value of $\mathrm{\pi }$ in decimal form we find value of $\frac{22}{7}$ by long division method up to as much digits we want .

$\mathrm{\pi }$  = 3.1428 ( up to four decimal digits )